Just the other day I found the HP memory project
http://hpmemoryproject.org/timeline/company/memories_home.htm which has memoirs of some key people who worked there for 40+ years. HP is a very special company for me; I used their equipment in my high school (instead of tek!!) for my electronics based science project (it was a clap switch), and then in college and grad school even after changing my major a few times, I ended up using HP GC and HPLC; so it was safe to say that I got great kicks reading about how it all started and how they slowly expanded to include such a vast lineup of instruments.
I am wondering if any of y'all know of other projects of these kind for your own favorite companies. Examples could probably include IBM, bell labs, Varian (used lot o their stuff too) etc.